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#890: Add ECDSA.toEthSignedMessageHash(bytes) for abritrary length message hashing #2865

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merged 8 commits into from
Oct 11, 2021

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td-bn
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@td-bn td-bn commented Sep 16, 2021

Fixes #890
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The PR adds a function toEthSignedMessageHash(bytes) to the ECDSA contract, that works for any length of a bytes array.

PR Checklist

  • Tests
  • Documentation
  • Changelog entry

@Amxx
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Amxx commented Oct 6, 2021

Hello @td-bn , and thank you for this PR!

Do you think it would be possible to add a test with a message that is not 32 bytes long?

@td-bn
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td-bn commented Oct 6, 2021

@Amxx, I've added said test. Please take a look.

@frangio
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frangio commented Oct 6, 2021

Please add a test in the section that says using web3.eth.sign, so we can confirm that this function is doing the same that eth_sign is doing under the hood.

Also, the function name of the new function should be toEthSignedMessageHash, not toEthSignedMessage. The "hash" part of the name refers to the output, not to the argument. We want to overload the current function so that it also supports bytes arguments.

@Amxx Amxx mentioned this pull request Oct 6, 2021
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@frangio
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frangio commented Oct 6, 2021

Thanks @td-bn! I made two small changes in the tests. Note that I replaced the longer string with a short one, because it's easier to tell that it doesn't happen to have length 32.

@Amxx Amxx changed the title #890: Add ECDSA#toEthSignedMessage for bytes type #890: Add ECDSA.toEthSignedMessageHash(bytes) Oct 7, 2021
@Amxx Amxx changed the title #890: Add ECDSA.toEthSignedMessageHash(bytes) #890: Add ECDSA.toEthSignedMessageHash(bytes) for abritrary length message hashing Oct 7, 2021
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Add ECDSA#toEthSignedMessageHash for bytes type
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